Having some issues...

[BlobdusaColoXus]

First of all, disable C1E. I see that you have it enabled.

What that does is throttle the CPU when it is not under load (by means of dropping multi), which is potentially "not good" when overclocking.

[CaptNKILL]

I guess I better take down those pics to prevent confusion. :o

As I said, those are not pics of my BIOS. I was just using pics from bit-tech to show the options I was unsure about.

[mullet]

:captnkill:

[CaptNKILL]

Ok this is driving me nuts.

I cannot change the speed of my memory without running it at +0.5v. :headexplode:

My motherboard automatically resets itself on post no matter what setting I use (667, 800, or even 1066). If I leave SPD at auto and let the motherboard run it at 1066 on its own, it works fine with default voltage (which, as far as I know, is only 1.8v).

What the hell is going on here? I just set it to +0.3 (which should be 2.1v... the recommended setting for this ram) and I had to clear my CMOS manually to get the thing to post.

It doesn't make any sense. It runs perfectly fine at stock settings, but as soon as I change anything (faster or slower) it all goes to hell.

Is there some setting I'm missing here? Does anyone else have a gigabyte P35 board?

EDIT: Hmm... I think I may have found a way around this quirk.

When you change the ram SPD (the ram multiplier) the system does an auto reboot (sort of a double reboot I guess) to save and test the settings. When you adjust voltages, it doesn't. For some reason, the only time it successfully saves and applies the SPD settings (anything but auto), is when I have the dimm voltage set to +0.5.

So... I set it to +0.5 and set all of my overclocks. Saved the settings. It did its reboots and it posted just fine. But then I went back into the BIOS and set the vdimm back to +0.3. Saved settings. It didn't have to do the double reboot this time so the settings took and its still working fine.

I'm guessing the excessive voltage was what was causing my RAM problems after extended use. It was probably overheating. At 2.1 it should be fine.

I'll do some testing but I think I may have solved it.

I don't know why the RAM SPD change requires +0.5v the first time... and I don't really care as long as I can get this thing to work the way I want. Its probably just a gigabyte BIOS bug.

[CaptNKILL]

I wonder if this will shed any light on anything...
http://www.xtremesystems.org/forums/showthread.php?t=110460

Its not the same chipset but it might help...

[Vik1dk]

@ the pics(not yours;) )
pic1: vmem over 2.0 it says fail
pic2: i disabled all except no execute mem
pic3: (G)MCH= Northbrige
pic4: I use option1 and extreeme but the AFAIK they dont do much
but the idea with option 1/2 is that if your mem overclock fails with one you can try the other
Gigabyte easytune 5 does show mem voltage if you hit advanced in the middel of it.
If you not already have, take a look in this thread(P35-DS3-4-6)
http://www.xtremesystems.org/forums/showthread.php?t=142340

[CaptNKILL]

Gah... easytune does have the memory voltage right there :o. It doesn't show it in the monitoring portion of the program so I assumed it didn't show it at all.

Thanks for the info! :)

Do you recommend giving the northbridge or the FSB any voltage? I'm running at 450Mhz FSB right now.

[Vik1dk]

mine is 0.1+ just to be sure ;)
BTW what bios do you have?

[CaptNKILL]

mine is 0.1+ just to be sure ;)
BTW what bios do you have?
F4 I think.

The newer BIOS updates didn't list any problems I noticed, and like they say, if it ain't broke, don't fix it. :p

[Vik1dk]

well i recommend flashing to F5x(beta) as the F4 basicly sucks, FSB over 417 lowers performance and low mem performance to name a few.
exampel: 7x470(3.29ghz) and mem@1220 was 350 3dm01 slower than 8x410(3.28ghz) mem@1025.
Mine came with F4 also and flashing to the beta gave a 2000 3dm01 boost and lowered latency in Everest from 68.4ns to 57.7ns with same settings/clocks
Never noticed a diff like this before with a bios flash. (lee63)

[CaptNKILL]

Hmm...

Where can I get this BIOS? I want to make sure I get the right one.

[Vik1dk]

Here...
http://www.gigabyte.us/Support/Motherboard/BIOS_Model.aspx?ProductID=2515
Just remember to check your rev. in the lower left corner of your board, should be 1.0